Clasp for sewing



FIG. 1 is a front elevational view of a clasp for sewing showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a top plane view thereof; and,

FIG. 5 is a bottom plane view thereof. 

The ornamental design for a clasp for sewing, as shown. 